🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.54 AU - 0.7 AU

Year: 310 Days

Day: 30.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 3.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.5

Radius: 12.6

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.61 AU - 0.79 AU

Year: 372 Days

Day: 14.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 71,112,656 km

• M1: 158,424 km (0.103 R)
• M2: 568,921 km (0.074 R)
• M3: 968,646 km (0.106 R)
• M4: 1,401,582 km (0.081 R)
• M5: 1,813,126 km (0.069 R)
• M6: 2,267,605 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.2

Radius: 12.9

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.69 AU - 0.89 AU

Year: 446 Days

Day: 5.8 Hours

Environment

Temp: -138 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,112,656 km

• M1: 160,519 km (0.079 R)
• M2: 714,180 km (0.104 R)
• M3: 1,189,752 km (0.076 R)
• M4: 1,650,513 km (0.057 R)
• M5: 2,204,325 km (0.092 R)
• M6: 2,689,171 km (0.077 R)
• M7: 3,679,360 km (0.119 R)
• M8: 4,209,086 km (0.043 R)
• M9: 4,712,183 km (0.064 R)
• M10: 5,238,768 km (0.113 R)
• M11: 5,893,558 km (0.112 R)
• M12: 6,334,871 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.9

Radius: 11

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.94 AU - 1.24 AU

Year: 724 Days

Day: 9.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,112,656 km

• M1: 137,032 km (0.096 R)
• M2: 563,685 km (0.052 R)
• M3: 961,166 km (0.104 R)
• M4: 1,460,524 km (0.119 R)
• M5: 1,871,320 km (0.071 R)
• M6: 3,296,389 km (0.036 R)
• M7: 3,678,013 km (0.093 R)
• M8: 4,028,371 km (0.074 R)
• M9: 4,596,395 km (0.056 R)
• M10: 5,971,199 km (0.103 R)
• M11: 7,350,192 km (0.074 R)
• M12: 8,298,194 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 324.5

Radius: 10.1

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.17 AU - 1.65 AU

Year: 1065 Days

Day: 12.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,112,656 km

• M1: 125,812 km (0.118 R)
• M2: 442,062 km (0.098 R)
• M3: 858,991 km (0.109 R)
• M4: 1,184,067 km (0.105 R)
• M5: 1,508,545 km (0.083 R)
• M6: 1,929,214 km (0.118 R)
• M7: 2,679,597 km (0.106 R)
• M8: 3,010,208 km (0.092 R)
• M9: 3,355,031 km (0.04 R)
• M10: 4,887,063 km (0.073 R)
• M11: 6,584,251 km (0.077 R)
• M12: 6,970,513 km (0.089 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 492.5

Radius: 8

Gravity: 7.7 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 5.93 AU - 7.07 AU

Year: 10537 Days

Day: 24.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 71,112,656 km

• M1: 99,483 km (0.115 R)
• M2: 362,625 km (0.063 R)
• M3: 818,001 km (0.079 R)
• M4: 1,285,345 km (0.098 R)
• M5: 2,186,672 km (0.084 R)
• M6: 3,224,732 km (0.104 R)
• M7: 3,626,701 km (0.042 R)
• M8: 4,445,899 km (0.066 R)
• M9: 5,036,512 km (0.083 R)
• M10: 5,678,436 km (0.066 R)
• M11: 7,890,540 km (0.095 R)
• M12: 8,358,781 km (0.11 R)
• M13: 10,021,561 km (0.056 R)
• M14: 10,469,457 km (0.086 R)
• M15: 11,948,831 km (0.114 R)
• M16: 12,738,408 km (0.051 R)
• M17: 13,087,420 km (0.119 R)
• M18: 13,622,681 km (0.1 R)
• M19: 14,928,521 km (0.106 R)
• M20: 15,447,327 km (0.082 R)
• M21: 16,315,892 km (0.078 R)
• M22: 17,216,471 km (0.113 R)
• M23: 18,815,672 km (0.077 R)
• M24: 21,972,935 km (0.107 R)
• M25: 22,559,508 km (0.085 R)
• M26: 28,023,421 km (0.042 R)
• M27: 32,874,282 km (0.086 R)
• M28: 34,758,317 km (0.111 R)
• M29: 39,227,703 km (0.025 R)
• M30: 40,589,642 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 359.7

Radius: 4.3

Gravity: 19.45 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 5.59 AU - 8.25 AU

Year: 11574 Days

Day: 23.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 83.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 71,112,656 km

• M1: 53,556 km (0.096 R)
• M2: 205,996 km (0.114 R)
• M3: 350,209 km (0.118 R)
• M4: 500,704 km (0.105 R)
• M5: 702,960 km (0.106 R)
• M6: 929,302 km (0.109 R)
• M7: 1,346,530 km (0.028 R)
• M8: 1,597,556 km (0.111 R)
• M9: 1,741,768 km (0.116 R)
• M10: 2,007,005 km (0.115 R)
• M11: 2,717,445 km (0.108 R)
• M12: 2,902,797 km (0.029 R)
• M13: 3,140,807 km (0.106 R)
• M14: 4,791,620 km (0.107 R)
• M15: 5,971,199 km (0.085 R)
• M16: 6,646,633 km (0.096 R)
• M17: 6,945,680 km (0.098 R)
• M18: 9,670,006 km (0.111 R)
• M19: 10,750,253 km (0.068 R)
• M20: 16,412,981 km (0.103 R)
• M21: 18,743,416 km (0.097 R)
• M22: 19,189,517 km (0.073 R)
• M23: 19,566,803 km (0.115 R)
• M24: 23,357,314 km (0.064 R)
• M25: 23,787,258 km (0.09 R)
• M26: 24,751,716 km (0.094 R)
• M27: 26,016,416 km (0.067 R)
• M28: 29,565,326 km (0.042 R)
• M29: 31,091,524 km (0.101 R)
• M30: 32,032,046 km (0.093 R)
• M31: 32,562,520 km (0.106 R)
• M32: 35,303,751 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 770.1

Radius: 3.5

Gravity: 62.87 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 7.46 AU - 8.32 AU

Year: 14091 Days

Day: 16.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 71,112,656 km

• M1: 43,832 km (0.105 R)
• M2: 154,385 km (0.067 R)
• M3: 314,604 km (0.116 R)
• M4: 446,400 km (0.1 R)
• M5: 692,040 km (0.081 R)
• M6: 866,321 km (0.107 R)
• M7: 1,538,913 km (0.098 R)
• M8: 1,854,864 km (0.082 R)
• M9: 3,163,397 km (0.118 R)
• M10: 4,295,254 km (0.107 R)
• M11: 4,951,690 km (0.109 R)
• M12: 5,824,443 km (0.093 R)
• M13: 6,136,953 km (0.037 R)
• M14: 7,053,689 km (0.118 R)
• M15: 7,318,627 km (0.098 R)
• M16: 7,682,449 km (0.073 R)
• M17: 7,915,672 km (0.068 R)
• M18: 10,121,642 km (0.096 R)
• M19: 10,861,553 km (0.103 R)
• M20: 11,636,770 km (0.065 R)
• M21: 12,512,216 km (0.094 R)
• M22: 13,363,578 km (0.117 R)
• M23: 16,377,227 km (0.113 R)
• M24: 16,763,638 km (0.116 R)
• M25: 17,394,642 km (0.042 R)
• M26: 24,496,651 km (0.074 R)
• M27: 24,698,010 km (0.036 R)
• M28: 25,001,843 km (0.116 R)
• M29: 31,975,348 km (0.11 R)
• M30: 33,066,515 km (0.076 R)
• M31: 35,838,115 km (0.092 R)
• M32: 39,584,345 km (0.067 R)
• M33: 40,982,935 km (0.112 R)
• M34: 42,125,414 km (0.062 R)
• M35: 44,473,652 km (0.106 R)
• M36: 57,177,952 km (0.117 R)
• M37: 58,603,320 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 77.7

Radius: 6

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 7.58 AU - 10.14 AU

Year: 16768 Days

Day: 18.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,112,656 km

• M1: 110,254 km (0.109 R)
• M2: 467,045 km (0.111 R)
• M3: 1,650,513 km (0.026 R)
• M4: 2,953,960 km (0.114 R)
• M5: 4,668,950 km (0.12 R)
• M6: 6,516,034 km (0.119 R)
• M7: 7,203,137 km (0.109 R)
• M8: 9,640,236 km (0.09 R)
• M9: 19,028,849 km (0.026 R)
• M10: 26,782,806 km (0.079 R)
• M11: 28,623,009 km (0.106 R)
• M12: 30,452,591 km (0.034 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 651.5

Radius: 5.7

Gravity: 20.05 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 8.58 AU - 10.36 AU

Year: 18529 Days

Day: 20.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 71,112,656 km

• M1: 98,585 km (0.114 R)
• M2: 367,412 km (0.092 R)
• M3: 1,053,019 km (0.056 R)
• M4: 1,235,080 km (0.116 R)
• M5: 1,785,600 km (0.037 R)
• M6: 3,013,500 km (0.116 R)
• M7: 3,877,427 km (0.064 R)
• M8: 4,482,551 km (0.082 R)
• M9: 6,040,313 km (0.111 R)
• M10: 7,122,055 km (0.072 R)
• M11: 8,792,166 km (0.111 R)
• M12: 9,058,151 km (0.065 R)
• M13: 9,439,326 km (0.09 R)
• M14: 10,468,859 km (0.044 R)
• M15: 13,576,605 km (0.103 R)
• M16: 14,587,288 km (0.106 R)
• M17: 14,810,189 km (0.106 R)
• M18: 15,035,484 km (0.118 R)
• M19: 19,222,728 km (0.075 R)
• M20: 22,805,148 km (0.09 R)
• M21: 24,126,247 km (0.107 R)
• M22: 26,256,969 km (0.072 R)
• M23: 26,587,132 km (0.105 R)
• M24: 29,092,747 km (0.082 R)
• M25: 31,503,367 km (0.076 R)
• M26: 34,964,463 km (0.096 R)
• M27: 36,580,868 km (0.115 R)
• M28: 38,105,719 km (0.118 R)
• M29: 39,528,395 km (0.115 R)
• M30: 44,162,937 km (0.115 R)
• M31: 51,172,944 km (0.038 R)
• M32: 53,253,700 km (0.117 R)
• M33: 54,850,807 km (0.091 R)
• M34: 56,114,909 km (0.065 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 388 - 17,637 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit